<template>
  <view class="goods-item" @click="gotoDetail($event)">
    <!-- 左侧的盒子 -->
    <view class="goods-item-left">
      <radio :checked="goods.goods_state" color="#c00000" v-if="showRadio" @click="radioClickHandler"></radio>
      <image :src="goods.goods_small_logo || defaultPic" class="goods_pic"></image>
    </view>
    <!-- 右侧的盒子 -->
    <view class="goods-item-right">
      <!-- 商品的名字 -->
      <view class="goods-name">
        {{ goods.goods_name }}
      </view>
      <view class="goods-info-box">
        <!-- 商品价格 -->
        <view class="goods-price">￥{{ goods.goods_price | toFixed }}</view>
        <!-- 商品数量 -->
        <uni-number-box @change="numChangeHandler" min="1" :value="goods.goods_count" v-if="showNum"></uni-number-box>
      </view>
    </view>
  </view>
</template>

<script>
export default {
  name: 'my-goods',
  props: {
    // 商品的信息对象
    goods: {
      type: Object,
      default: {}
    },
    // 是否展示图片左侧的 radio
    showRadio: {
      type: Boolean,
      default: false
    },
    // 是否展示价格右侧的 NumberBox 组件
    showNum: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      // 默认的空图片
      defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
    }
  },
  methods: {
    radioClickHandler() {
      // 触发自定义事件
      this.$emit('radio-change', {
        goods_id: this.goods.goods_id,
        goods_state: !this.goods.goods_state
      })
    },
    numChangeHandler(val) {
      // 触发自定义事件
      this.$emit('num-change', {
        goods_id: this.goods.goods_id,
        goods_count: +val
      })
    },
    gotoDetail(e) {
      // console.log(e)
      if (JSON.stringify(e.target.dataset) === '{}') {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + this.goods.goods_id
        })
      }
    }
  },
  filters: {
    // 把数字处理为带两位小数点的数字
    toFixed(num) {
      return Number(num).toFixed(2)
    }
  }
}
</script>

<style lang="scss">
.goods-item {
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;

  .goods-item-left {
    margin-right: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;

    .goods_pic {
      width: 100px;
      height: 100px;
      display: block;
    }
  }
  .goods-item-right {
    display: flex;
    flex: 1;
    flex-direction: column;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
    }
    .goods-info-box {
      display: flex;
      justify-content: space-between;
      align-items: center;

      .goods-price {
        color: #c00000;
        font-size: 16px;
      }
    }
  }
}
</style>
